Wrench



v 7 1,465,470 A. GLOOR WRENCH Filed June 29, 1922 Patented Aug. 21, 1923.

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ALBERT GLOOR, OF CHICAGO, ILLINOIS.

WRENCH.

To aZZ whom it may concern j j Be it known that I, ALBERT GLoon, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certainnew and useful Improvements in l/VrenchesJof which the followingis a specification.

My invention relates to wrenches of the kind suitable for holding articles of various general shapes through'the adjustability of an intermediate jaw to present diiferent kinds of gripping surfaces to. such objects' As the device is herein illustrated it maybe used for holding pipes or nuts and the like. The present invention is. an improvement upon the device of my U.IS.' Patent No. 1,17 8,007 of April 4,1916, and its principal object is to provide more advantageous means for holding the intermediate jaw in either of its normal operative positions.

In the accompanying drawings, which form a part of this specification, Figures 1 and 2 are farce views of the wrench with the intermediate jaw in its respective operative positions; Fig. 3 is a sectional view on the line 33 of Fig. 2; and Fig. 4 is an enlarged sectional view on the broken line 44 of Fig. 1.

The main shank 10 carries a handle 11 at one end and the relatively fixed jaw 12 at the other. The movable jaw 13'is integral with the threaded stem 14 passing loosely through an opening 15in the yoke-like elementor keeper 16, which keeper is pivotally mounted at 17 upon the shank whereby it may rock thereon to a limited degree. A. thumb nut 18 loosely confined in the transverse opening 19 of the yoke is threaded upon the stem 14, the rotation of the nut moving thejaw 13 acljustably away from and toward the fixed jaw 12. This much of the device is in accordance with the ordinary Stillson wrench construction.

Between the fixed and movable jaws is an auxiliary jaw 20 having serrations on one face adapted to face and 'interfit with corresponding serrations on the movable jaw 13, and being plane on the other face where- My improved means for holding the intermediate jaw in one or the other of its operative positions are located at the rear ex tremity of the intermediate jaw stem and cooperating holding means are provided at the rear end of the movable jaw stem and also. on the shank. These holding means are shown as a catch member 25 carried for rocking movement on a pin orscrew 26 held in the turned-up end of the stem 21 by. a set screw 27, the catch or locking member 25 having a finger wheel or button 28 by which it may conveniently be rocked. The catch 25'has an off-center extension which enters a notch or recess 30 in the threaded stem 14 when it, is desired to hold the stems 14 and 21 together for simultaneous movement, and to enter the notch or recess 31 in the shank 10 when it is desired to lock the intermediate jaw 20 against the jaw 12.

It is thus made apparent that when the several parts are locked together as in Fig. 2 the intermediate jaw 20 will move with the adjustable jaw 13 throughout its normal range of movement and always provide a corresponding space as 83 for the accommodation of nuts and other angular objects. It is also clear that when the parts are looked as in Fig. 1 the intermediate jaw will remain against the jaw 17 and provide a space as 34 of varying widths suitable for holding round objects.

The turned up rear end of the stem 21 constitutes also a rest for the rear end of the adjusting stem 14, as shown in Fig. 2, and maintains the jaw faces at 33 substantially parallel to each other. This rest is out of such function in the adjustment shown by Fig. 1 and the desired rocking movement of the jaw 18 is thereby permitted when such objects as pipes are gripped.

I contemplateas being included in these improvements such modifications of and departures from what is herein specifically illustrated and described as fall within the scope of the appended claims.

I claim:

1. In a wrench, the combination of a shank having a relatively fixed jaw, a relatively movable jaw adjust-ably mounted on said shank to move from and toward said relatively fixed jaw, said movable jaw having an adjusting stem extending substantially parallel with said shank, an auxiliary jaw intermediate said other two jaws, said auxiliary aw having a stem slidably mounted on relatively fixed'shank having a jaw, a yokev member mounted on said shank, a relatively movable jaw having a screw-threaded stem extending loosely through an opening in said yoke member and substantially parallel with said shank, an adjustingnut-like element on said threaded stemand loosely confined in said yoke member, an auxiliary jaw between said other two aws and having a gripping surface for ob ects of one general shape toward one of said jaws and having a gripping surface of another general shape toward the other of said aws, said auxiliary jaw havinga stem slidably mounted on said shank-whereby it may be moved againsteach of said other jaws alternately, holding means on said screw-threaded stem, holding means on said shank, and holding means at the rear end of saidrauxiliary jaw stem adapted to cooperate alternately with either of said other holding means for holding said intermediate jawrelea'sably in contact with either of said other two jaws.

3. In a wrenchof the character described having a relatively fixed jaw on a. shank, a jaw movable relative to thefi Xed jaw, and an intermediate jaw, the intermediate jaw having a stem slidably mounted on said shank and said movable jawhaving an adjusting stem extending alongside and substantially parallel to said shankand to said intermediate jaw stem, thecombination' therewith of a locking member carried at the rear end of the intermediatej aw stem, means on saidjmovable jaw stem adapted to cooperate with said locking memberto hold-releasably saidtwo stems for simultaneous movement when the intermediate jaw is against thesaid movable jaw, and means on said shankadapted'to'cos;

operate with said locking member for holding said intermediate jaw rele'asably in contact with said relatively fixed jaw.

v vALBERI GLOOR. 

